Update app.py

app.py

@@ -140,7 +140,7 @@ def get_prompts(prompt_text):
 
 # Existing code...
 
-with gr.Blocks(css=".gradio-container {background-color: #F5F5F5;} .dark .gradio-container {background-color: #003333;} footer{display:none !important;}",) as demo:
+with gr.Blocks(css=".gradio-container {background-color: #F5F5F5;} .dark .gradio-container {background-color: linear-gradient(to top, #09203f 0%, #537895 100%);} footer{display:none !important;}",) as demo:
 
 
     with gr.Column(elem_id="col-container"):